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A drug is any chemical substance other than a nutrient or an essential dietary ingredient, which, when administered to a living organism, produces a biological effect. [1] Consumption of drugs can be via inhalation, injection, smoking, ingestion, absorption via a patch on the skin, suppository, or dissolution under the tongue.
Drug nomenclature is the systematic naming of drugs, especially pharmaceutical drugs.In the majority of circumstances, drugs have 3 types of names: chemical names, the most important of which is the IUPAC name; generic or nonproprietary names, the most important of which are international nonproprietary names (INNs); and trade names, which are brand names. [1]
Pronunciation is the way in which a word or a language is spoken. This may refer to generally agreed-upon sequences of sounds used in speaking a given word or language in a specific dialect ("correct" or "standard" pronunciation) or simply the way a particular individual speaks a word or language. [1] (Pronunciation ⓘ)
If the pronunciation in a specific accent is desired, square brackets may be used, perhaps with a link to IPA chart for English dialects, which describes several national standards, or with a comment that the pronunciation is General American, Received Pronunciation, Australian English, etc. Local pronunciations are of particular interest in ...
Table from the 2010 ISCD study ranking various drugs (legal and illegal) based on statements by drug-harm experts. LSD was found to be the 18th most dangerous out of 20 considered. [ 55 ] Addiction experts in psychiatry, chemistry, pharmacology, forensic science, epidemiology, and the police and legal services engaged in delphic analysis ...
Google Dictionary is an online dictionary service of Google that can be accessed with the "define" operator and other similar phrases [note 1] in Google Search. [2] It is also available in Google Translate and as a Google Chrome extension. The dictionary content is licensed from Oxford University Press's Oxford Languages. [3]
Amphetamine is a weak base with a pK a of 9.9; [3] consequently, when the pH is basic, more of the drug is in its lipid soluble free base form, and more is absorbed through the lipid-rich cell membranes of the gut epithelium. [3] [29] Conversely, an acidic pH means the drug is predominantly in a water-soluble cationic (salt) form, and less is ...
A spelling pronunciation is the pronunciation of a word according to its spelling when this differs from a longstanding standard or traditional pronunciation. Words that are spelled with letters that were never pronounced or that were not pronounced for many generations or even hundreds of years have increasingly been pronounced as written, especially since the arrival of mandatory schooling ...